:root {
  font-family: Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color: #333;
  background-color: #f5f5f5;
}

body {
  margin: 20px;
  min-width: 320px;
}

h1 {
  font-size: 2em;
  line-height: 1.1;
}

button {
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  font-weight: bold;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:focus,
button:focus-visible {
  outline: 2px auto -webkit-focus-ring-color;
}

#app {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
}

/* 移除默认的暗色模式 */
@media (prefers-color-scheme: dark) {
  :root {
    color: #333;
    background-color: #f5f5f5;
  }
}